Discover how tiny additives like vanadium, tantalum, and rare earth elements transform tungsten carbide into super-materials. Learn the science behind grain control, red hardness, and additive engineering.
In 1923, cobalt was used as a binder to make practical cemented carbide. Later, new components and coating technologies were developed to improve its performance, forming complete grade systems and greatly extending tool life.
This article outlines the evolution of cemented carbide: ordinary steel softens above 200°C; high‑speed steel (1898) raised heat resistance to 600°C but remained limited by its steel matrix. By abandoning steel and using tungsten carbide with a cobalt binder, after 30 years of development, cemented carbide broke the “200°C trap” and became the foundation of modern cutting tools.
Tungsten carbide rings, alloyed with cobalt, come in one-piece or combined styles. At 700 °C they stay four times harder than high-speed steel, delivering superior strength and pressure resistance over conventional tool steel.
Sunterra attended the Zhuzhou Cemented Carbide Expo from Oct 19 to 22 at Booth B31. It showcased high-precision carbide products, held live demos and technical exchanges, attracting global clients. The company offers customization and welcomes further cooperation.
Suntera custom carbide tensile dies revolutionize aluminum battery-shell production for new-energy vehicles. Tungsten-carbide precision withstands high-speed drawing friction, cutting failure rates, extending mold life and slashing replacement downtime versus ordinary steel. Fast, tailored sizing, short lead times and global support deliver safer, higher-yield large-format power-battery shells at lower total cost.
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